Insulator-supporting structure.



c, P. SEYLER. msuunoa' SUPPORTINQ STRUCTURE.

. Arrglcuibu FILED M'AY4.19|4. 1,147,757.

PawntedJuly 27, 1915.

' INVENTOR.

JMQWW ATTORNEYS.

WITNESSES I 07% CARL P. SEYLER, F PITTSBURGH, PENNSYLVANIA.

INSULATOR-SULPORTING STR'O'GTURE.

idea's v.

Specification of Letters Eatent.

Patented July 2?, 1915.,

Application filed May 4, 1814. Serial No. 836,105.

To all whom it may concern:

Be it known that I, CARL P. SEYLER, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny 5 and State of Pennsylvania, have invented certain new and useful Improvements in Insulator-Supporting Structures, of which the following is a specifica ion.

My invention relates to imprloved insu- ItO lator supporting structure particularly adapted for use in connection with three wire circuits.

The invention concerns particularly a construction built up of commercial iron bar,

as for example, angle bar or channel bar, and among the important objects are to provide a construction which will not require twi. ting ,of the bars in order that the bars may retain uniform strength through- 0 out; td puovide construction and arrangement which will enable adjustment to take care of varying size 'of poles without requiring twisting or bending of the structure and without disturbing the perpendicularity 5 of the pins on the structure; to provide a structure which will give greater pole clearance to the insulators and wires thereon and without materially increasing the weight of the structure; to provide improved construetion and arrangement which will enable the structure to be more rigidly and efficiently secured to a pole and which will efficiently resist rotation of the structure on the ole; and in general to provide a simplified, lighter, and more rigid structure of the character referred to.- v

The various features of the invention will be fully understood by referring to the accompanying sheet of drawings in which-- Figure 1 is a front elevational view of the supporting structure and the upper end of a pole to which the structure is secured; Fig. 2 is a side elevational. view of the parts shown in Fig. 1; Fig. 3 is a plan view; Fig.

4 is a plan view taken substantially fr0m plane H, Fig. 2, with parts broken away; and Fig. 5 is an elevational view of one end of the supporting structure showing a modified arrangement.

The supporting structure shown is built up of angle iron bars although bars of other cross-section could be used. The structure involves a bow-shaped or ll-shaped frame 10 and an arm 11 extending coincident with as the axis of the frame 10 and across the bend thereof. The ends a and e of the limbs c and d of the frame 10 are bent to be parallel with each other and to be horizontal when the frame is secured to a support, as for example a pole 79. Intermediate the ends a and Z) and the bend or apex-c of the frame, the limbs 0 and d have the bolt holes through which bolts 12 and 13 pass to ,secure the frame to the pole. The section of the arm 11 outtide of the bend e is straight, the intermediate section 11 is deflected to an angle with the plane of the frame 10, and the end 11 is bent back toward the plane of frame 10 in order to form a pocket 0 for receiving the pole, the end 11 having a bolt hole 14: in its vertical flange for receiving a lag screw or the through bolt 9 shown. At the inner end of the outer section of the arm the vertical flan e thereof has a bolt hole 15 for registering the bolt hole 16 thrcugh the flange at the bend e in frame 10, these-registering holes receiving a bolt 17 for securing the arm 11 and frame 10 together at that point. The limbs of frame 10 being: secured to the pole by bolts 12 and 13 and the bend of the frame being secured to arm 11 whose inner end is bolted to the pole, a very rigid supporting structure results. The frame 10 being secured at unuer and lower points against one side of the Ole and the arm 11 being secured to the bend of the frame and at its center to the o posite side of the pole, the structure is rigidly held against rotational movement on the pole, and this balanced. supporting arrangement will also prevent twisting of the structure under heavy strains and weights.

The horizontal ends a and b of the frame 10 and the outer end of arm 11 receive insulator pins of any suitable construction. The pins f shown are each bent up from a length of channel bar to provide the long slot h at the lower end and to form at' the upper end a seat for an insulator supporting thimble. Straps j are shown for securing the pins to the supporting structure, each strap receiving the sun ort and the threaded ends thereof extending through the pin slot in to receive nuts is. I have thus an all metal supporting structure which is of tion of the holes for bolts 12 and 13 and the length of the arm 11 is adjusted so that when the structure is applied its center of gravity will be in the vertical plane of the bolts 12 and 13 in order that the weight of the one-{wire on arm 11 will counter balance the weight of the two wires on the ends a and b of the frame 10.

As poles are not always of uniform diameter it is desirable to allow for adjusting the supporting structure to take care of such variations. As shown best in Fig. 4, I elongate the bolt hole 15 longitudinally of the arm 1.1 to allow relative longitudinal movement of the arm with reference to the frame 10. In Fig. 3 the diameter of the pole p is such that it will fit in the pocket 0 between the frame 10 and the .end 11 of the arm, and the arm 11 may then be secured to the frame 10 to be in parallelism therewith. Fig. 4 shows a pole of larger diameter but by su'iiiciently withdrawing the nut or bolt 17 the arm. can be swung horizontally with reference to the frame 10 to widen the pocket 0 so that the pole will be readily received between the end 11 and the frame 10, and the arm can be longitudinally shifted to bring the bolt hole 14 in registration with the hole for the bolt 9. Then when the bolt 17 is tightened and the end 11 secured to the pole by the bolt 9*, the partswill be rigidly secured together and to the pole and withoutcausing twisting of the parts at any point and without moving or swinging the pins from their perpendicular position. In-

stead of having the slot 15 in the arm 11, the bolt hole 16 in frame 10 could be elongated, or both bolt holes could be elongated.

The structure is equally adapted for supporting pins differing in style from those shown. In Fig. 5 I have shown the vertical flanges 0. bent down against the horizontal flange section of that end in order to form a flat seat for the base at of the pin a. At the end 6 of'the frame 10 the vertical flange section will be bent upwardly against the horizontal flange section. At the end of arm 11 the horizontal flange section will form a seat for the base of a pin such as n.

I do not of course desire to be limited to the exact constructions and arrangements shown and described as other modifications may be possible which would still come with-' in the scope of the invention.

I claim as follows:

1. In an insulator supporting structure, the combin'ationof a V- or bow section, and an arm secured to the bend of the V- or bow section and extending substantially coinci dent with the axis of such section and to both sides of the bend, the inner end of said arm and the limbs of the V- or how section having bolt holes whereby the structure may beseeured at three points to a pole.

In an insulator supporting structure.

the combination of a V- or bow frame, and an arm secured to the frame at the bend thereof and extending substantially coincident with the frame axis, the inner end of said arm extending between the limbs of the frame and being deflected laterally whereby the structure may be applied to a pole with the limbs of the frame engaging against one side of the pole and the deflected end of'the arm engaging against the other side thereof, said limbs at the inner end of the arm being provided with bolt holes.

8. In an insulator supporting structure, the combination of a V-shaped section adapted at its ends to receive insulator pins, an arm secured to said section at the bend thereof, the outer end of the arm being adapted to support an insulator pin and the inner end extending between the ends of the V- section and being deflected laterally, such inner end and the limbs of the V-section being provided with bolt holes whereby the V-section may be secured against one side of the pole and the inner end of the arm against the opposite side of the pole.

4. In an insulator supporting structure, the combination of a V-fraine bent from a single piece of metal bar, bolt holes in the limbs of said frame intermediate the bend and the ends thereof whereby said frame may be secured to a pole with its axis horizontai, and an arm extending horizontally from said frame and secured to the frame adjacent the bend thereof, the inner end of said arm extending between the limbs of said frame and being deflected laterally away from the plane of the V-frame to engage with the pole at the side opposite the side to which the V-frame is secured, said deflected end having a bolt hole by means of which it may be secured to the pole.

5. An insulator supporting structure comprising a bow-frame and an arm extending substantially coincident with the axis of said frame and to either side of the bend and secured to the frame at the bend, the limbs of said frame and the inner end of said arm being adapted to be secured to a pole and the outer ends of said limbs and arm being adapted to support insulator pins.

6. In an insulator supporting structure, the combination of a bow-fram bent from a single piece of metal bar, an arm secured to the frame at the bend thereof and extending inwardly between the limbs of said frame,

the inner end of said arm having a bolt hole thereof and the bend, and a bolt hole in the In Witness whereof, I hereunto subscribe iljl'llilfll' end of said) arm din line with saidblimb my name this 27th day of April, AI D. 1914:.

0 t ho es Where y sai structure may e secured at three points to a pole, said arm hav-- CARL SEYLER' 5 ing bolt and slot connection with the bend Witnesses:

for allowing longitudinal adjustment of said CHARLESJJ. SCHMIDT, arm. S. B. CARR, 

